221111337668 has 24 divisors (see below), whose sum is σ = 421984644480. Its totient is φ = 100759595040.

The previous prime is 221111337659. The next prime is 221111337701. The reversal of 221111337668 is 866733111122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26908178 + ... + 26916393.

It is an arithmetic number, because the mean of its divisors is an integer number (17582693520).

Almost surely, 2^221111337668 is an apocalyptic number.

It is an amenable number.

221111337668 is a deficient number, since it is larger than the sum of its proper divisors (200873306812).

221111337668 is a wasteful number, since it uses less digits than its factorization.

221111337668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53824667 (or 53824665 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The spelling of 221111337668 in words is "two hundred twenty-one billion, one hundred eleven million, three hundred thirty-seven thousand, six hundred sixty-eight".